(19)
(11) EP 1 923 633 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.02.2013 Bulletin 2013/09

(43) Date of publication A2:
21.05.2008 Bulletin 2008/21

(21) Application number: 07020923.4

(22) Date of filing: 25.10.2007
(51) International Patent Classification (IPC): 
F01D 17/02(2006.01)
F02C 9/28(2006.01)
F23N 5/08(2006.01)
F23R 3/00(2006.01)
 F01D 21/00(2006.01)
F23N 1/00(2006.01)
F23N 5/16(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 17.11.2006 US 601301

(71) Applicants:
  • Delavan Inc.
    West Des Moines, IA 50265 (US)
  • Rosemount Aerospace Inc.
    Burnsville, MN 55306 (US)

(72) Inventors:
  • Cornwell, Michael D.
    Bloomington, Minnesota 55438 (US)
  • Goeke, Jerry L.
    West Des Moines, Iowa 50265 (US)
  • Myhre, Douglas C.
    Eden Prairie, Minnesota 55346 (US)
  • Eriksen, Harald O.
    Minneapolis, Minnesota 55428 (US)

(74) Representative: Hargreaves, Timothy Edward et al
Marks & Clerk LLP Aurora 120 Bothwell Street
Glasgow G2 7JS
Glasgow G2 7JS (GB)

   


(54) Active combustion control system for gas turbine engines


(57) A system is disclosed for actively controlling combustion in a gas turbine engine (10), which includes a fuel injector (110) for issuing fuel into a combustion chamber of the gas turbine engine (10). The fuel injector (110) has a dynamic pressure sensor (130) for measuring acoustic pressure within the combustion chamber and a flame sensor (140) for observing flame characteristics within the combustion chamber. The system further includes a high speed valve assembly (112) for controlling flow of fuel to the injector (110) and an electronic controller associated with the fuel injector (110) for commanding the valve assembly (112) to deliver fuel to the fuel injector (110) at a commanded flow rate, based upon input from the sensors (130,140) in the fuel injector (110).







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Search report